Hi, some will see in my introduction (common thread) that by far I am not an electronic/electrical specialist, curious to promote the science to my kids though.
This thread is about optimising human ability to accumulate usable/stored electricity, would it be for transportation assitance or powering house appliances or modestly charging phones...
Chapter 1:
is about my eldest son last year under graduate starting a small school project trying to find out if a capacitor can help taking varied charge to transfer charge into a small 12v lead gel battery.
He is working with his physics teacher and simulating human pedal charger with generator source volt pattern over 5mins 8-9-10-12-9 volts held for a minute each.
The man is to check if (a) the battery charges equaly with and without "pumping" volts through a capacitor (b) the batterie heats up marginally more with and without the intermediate capacitor.
Nb: for the moment the circuit is basic, with a regulated power source we hope is protected, switch, capacitor and battery. A lazer heat sensor gun to monitor component temp.
We are not sure of the relevance of the test, whether it will be conclusive with componants not really optimal for the test.
The first challenge was to discharge the lead acid battery ideally to 7-8v.... It keeps coming up by itself....
Chapter 2:
Trying to use the k-tor pedal charger 120v dc or 12v dc 20w output to charge a supercapacitor bank that charges a car battery
Chapter 3:
Scale up further the charger to use 500W 12v dc motor with two pedal cyclist to charge a an electric vehicle type Renault Twizy or "Fine mobile" Twike through an appropriately sized supercapacitor bank.
Chapter Z:
Consider this setup to experiment a trip in Buthan or Africa and an alternative to offer a way to supply a portable device capable to generate power to help people not grid connected but capable to paddle, eventually time shared nimble transport for a few goods and driver 30-40km away at moderate speed.
Help is welcome on chapter 1 for now, all comments especially constructive would help first focus on testing the technical side. Not overly stopped by the utopist economical perspective of chapter z for now.
The cost of the testing will be a challenge we plan to address ourselves when the decision to invest comes.
Feel free to send technical guidance for now.
Cheers
Francois and kids
This thread is about optimising human ability to accumulate usable/stored electricity, would it be for transportation assitance or powering house appliances or modestly charging phones...
Chapter 1:
is about my eldest son last year under graduate starting a small school project trying to find out if a capacitor can help taking varied charge to transfer charge into a small 12v lead gel battery.
He is working with his physics teacher and simulating human pedal charger with generator source volt pattern over 5mins 8-9-10-12-9 volts held for a minute each.
The man is to check if (a) the battery charges equaly with and without "pumping" volts through a capacitor (b) the batterie heats up marginally more with and without the intermediate capacitor.
Nb: for the moment the circuit is basic, with a regulated power source we hope is protected, switch, capacitor and battery. A lazer heat sensor gun to monitor component temp.
We are not sure of the relevance of the test, whether it will be conclusive with componants not really optimal for the test.
The first challenge was to discharge the lead acid battery ideally to 7-8v.... It keeps coming up by itself....
Chapter 2:
Trying to use the k-tor pedal charger 120v dc or 12v dc 20w output to charge a supercapacitor bank that charges a car battery
Chapter 3:
Scale up further the charger to use 500W 12v dc motor with two pedal cyclist to charge a an electric vehicle type Renault Twizy or "Fine mobile" Twike through an appropriately sized supercapacitor bank.
Chapter Z:
Consider this setup to experiment a trip in Buthan or Africa and an alternative to offer a way to supply a portable device capable to generate power to help people not grid connected but capable to paddle, eventually time shared nimble transport for a few goods and driver 30-40km away at moderate speed.
Help is welcome on chapter 1 for now, all comments especially constructive would help first focus on testing the technical side. Not overly stopped by the utopist economical perspective of chapter z for now.
The cost of the testing will be a challenge we plan to address ourselves when the decision to invest comes.
Feel free to send technical guidance for now.
Cheers
Francois and kids